I dont know about that. We always act like users of any platform are like babies that need a holding hand.. Thats the biggest problem in politics right now, we can see where it leads to. Then again we ordinary people give away another piece of decision making freedom to some few that decide what quality is and what not, could be abused. (Oh you said gay?? Nope! Oh you dislike xyz in your tracks? NOPEDY NOPE!) A user rating system is what i could imagine so you just see before listening if its bad or not, but even this could be abused by haters.
I still believe in people that are capable of deciding for themselves whats good for them or not.
On social media everyday,and many other places, I watch how these people are easily misled maliciously, or whateverly, whether intention triggers. All believing some dumb thing... even the "I do not give Facebook permission to" posts and dumb shit like that, idiots putting "no copyrights infringements intended" on posts. People are THICK. People are easily led by the flock of other dumb idiots.
They are being led and guided anyway. They need to be guided again.
Spotify, and whoever else, should have some quality control gatekeepers. Sure, have user platforms, like SoundCloud where people can upload whatever shit they like.
But certain services should be treated like radio stations would.